Laptops Part 2( Comptia Objective 1.2)

Question 1

What should you make sure you do whenever you are removing or replacing a laptops screens inverter?

Answer 1

• Make sure you always turn off and unplug the laptop then also remove the battery before removing the inverter.

Question 2

What is a laptops screen inverters main purpose?

Answer 2

• To convert DC power from the motherboard into AC power that is sent back to the backlight.

Question 3

Where typically are a laptops webcam and microphone located and how can they be disabled?

Answer 3

• Typically the webcam and microphone are located above the laptops display.
• They can be removed by first removing the laptop displays bezel and then carefully unplugging the webcam/microphone module and removing with a shim
• Both can also be disabled within the OS or with a function key.

Question 4

What is the difference between an mini PCIE and M.2 wifi antenna?

Answer 4

• M.2 wifi antennas/ cards are typically attached to the motherboard with 1 screw where an mini pcie will use 2.
• M.2 cards are typically smaller and are usually 22x30mm or 12x16mm whereas mini pcie cards are 30x50.95 mm or the half mini is 30x26.8mm long.

Question 5

What is an advantage of an LCD display?

Answer 5

• Lightweight
• Relatively low power
• Relatively inexpensive

Question 6

If after replacing a laptops backlight you still don’t have display what can you do?

Answer 6

• Replace the inverter.